Development of a Transient Duty Cycle for Large Nonroad SI Engines 2002-01-1716
The Environmental Protection Agency (EPA) has proposed emission standards for nonroad spark-ignition engines rated over 19 kW. Existing emission standards adopted by the California Air Resources Board require testing on a steady-state duty cycle. This paper presents the results of measurements to characterize normal operation from forklift trucks, which are the dominant application for these engines. In combination with previous measurements with a welder to represent constant-speed applications, the measured data were used to derive a composite 20-minute transient duty cycle for emission testing for all nonroad industrial spark-ignition engines.
Citation: Ulmet, V., White, J., Stout, A., and Salardino, D., "Development of a Transient Duty Cycle for Large Nonroad SI Engines," SAE Technical Paper 2002-01-1716, 2002, https://doi.org/10.4271/2002-01-1716. Download Citation
Author(s):
Vlad Ulmet, Jeff J. White, Alan Stout, David Salardino
Affiliated:
Southwest Research Institute
Pages: 9
Event:
Spring Fuels & Lubricants Meeting & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
General Emissions Research and Technology-SP-1714
Related Topics:
Environmental protection
Spark ignition engines
Environmental regulations and standards
Environmental testing
Emissions certification
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